merge from 3.4

Issue25917 : Fix howto links in docs. Point the reference documentation instead of wiki.

Doc/faq/programming.rst

@@ -1010,8 +1010,7 @@ performance levels:
   may come up with.  This is doubly true for primitives written in C, such
   as builtins and some extension types.  For example, be sure to use
   either the :meth:`list.sort` built-in method or the related :func:`sorted`
-  function to do sorting (and see the
-  `sorting mini-HOWTO <https://wiki.python.org/moin/HowTo/Sorting>`_ for examples
+  function to do sorting (and see the :ref:`sortinghowto` for examples
   of moderately advanced usage).
 
 * Abstractions tend to create indirections and force the interpreter to work

Doc/library/functions.rst

@@ -1306,8 +1306,7 @@ are always available.  They are listed here in alphabetical order.
    compare equal --- this is helpful for sorting in multiple passes (for
    example, sort by department, then by salary grade).
 
-   For sorting examples and a brief sorting tutorial, see `Sorting HowTo
-   <https://wiki.python.org/moin/HowTo/Sorting/>`_\.
+   For sorting examples and a brief sorting tutorial, see :ref:`sortinghowto`.
 
 .. function:: staticmethod(function)